Black and White color

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JoseVieira
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Black and White color

Post by JoseVieira » Sat Aug 03, 2019 1:16 am

Black and White color

At QCad, and others CAD systems, whatever a line is black or white, it will be displayed as a white line over a black background, and a black line over a white background.
Captura de tela em 2019-07-08 20-06-41.png
Captura de tela em 2019-07-08 20-06-41.png (42.88 KiB) Viewed 643 times
Captura de tela em 2019-07-08 20-06-42.png
Captura de tela em 2019-07-08 20-06-42.png (44.41 KiB) Viewed 643 times
But when we open files generated by QCad at others Cad softwares like AutoCad or DraftSight, we get black (R=0, G=0, B=0) lines that remains black over black background, as white (R=255, G=255, B=255) lines that remains white over white background.
Captura de tela em 2019-07-08 20-06-43.png
Captura de tela em 2019-07-08 20-06-43.png (71.97 KiB) Viewed 643 times
Captura de tela em 2019-07-08 20-06-44.png
Captura de tela em 2019-07-08 20-06-44.png (73.4 KiB) Viewed 643 times
This isn't good when you are working together with people that uses AutoCad and have to ask them to change the background collor of their CAD software in order to see your work.

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Husky
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Re: Black and White color

Post by Husky » Sat Aug 03, 2019 2:11 am

Have you tried to change the Color Adjustment settings below Graphics View /Appearance ?

"Prevent white on white / black on black display" could solve your issue:


Husky-2019.08.02-01.png
Husky-2019.08.02-01.png (85.81 KiB) Viewed 640 times
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JoseVieira
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Re: Black and White color

Post by JoseVieira » Sat Aug 03, 2019 2:20 pm

Dear Husky,

it didn't work. It was already set.
Have you ever notice that before?

José Vieira

JoseVieira
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Re: Black and White color

Post by JoseVieira » Sat Aug 03, 2019 2:24 pm

Dear Husky,
In order to work at other CAD systems, Black/White color has to be set as "color #7", and not RGB=255,255,255 or RGB=0,0,0.
I don't know how to do that. But, that is.
Vieira

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Husky
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Re: Black and White color

Post by Husky » Sat Aug 03, 2019 7:02 pm

JoseVieira wrote:
Sat Aug 03, 2019 2:20 pm
Have you ever notice that before?
Not as a compatibility issue ...
JoseVieira wrote:
Sat Aug 03, 2019 2:24 pm
In order to work at other CAD systems, Black/White color has to be set as "color #7", and not RGB=255,255,255 or RGB=0,0,0.
I'm sure you have to deal with this issue right now but that is not a common compatibility issue. A color code called RGB=255,255,255 or Hex #FFFFFF is used everywere as a standard. I never heard about color #7 what makes me thinking that is an AC thing ...

However - I'm sure color #7 is defined by a RGB or HEX code. If you can find out what code is behind color #7 then you can use that to adjust QCAD colors.

But .... I'll be surprised if you find anything else then RGB=255,255,255 or RGB=0,0,0 behind color #7 ... e_surprised
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CVH
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Re: Black and White color

Post by CVH » Sat Aug 03, 2019 7:23 pm

It is the fix for ACAD to set the background and objects color to color7.
ACAD option color7 will show black as white over black and invers.

In Qcad we use App.Prefs. to chose this visualization.

It can be color 'Default'
viewtopic.php?f=8&t=6460
or lineweight 'Default' or '0,0'
Lot's of Forum entries

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